Kazumi Izaki Japanese woman (46) trains to.become world's oldest boxing champion, most of the day, Kazumi Izaki's routine is much the same as any other Tokyo housewife:.she rises at 5:45, makes her daughter's box lunch, shops, cooks and cleans. But when her sumo-wrestling husband.comes home in the evening, she heads for the local boxing ring to spar for a.world title shot.